What is high-pressure water jetting?
A pipe-cleaning technique that uses pressurised water jets to remove grease, mineral buildup, and blockages from inside drainage lines without mechanical tools.
High-pressure water jetting propels water at pressures typically between 1,000 and 4,000 PSI through a specially designed nozzle into drainage pipes. The force dislodges accumulated grease, limescale, mineral deposits, tree roots, and other blockage material from the pipe interior, flushing debris downstream toward the main sewer.
This method differs from mechanical rodding, which uses a snake or cable to push through or hook out blockages. Water jetting works by erosion rather than displacement, meaning it cleans the pipe walls themselves, not just creating a path through the clog. For grease-clogged lines common in residential kitchens and commercial food service areas, jetting can dissolve and remove buildup that rodding might only pierce.
The technique suits various pipe materials including PVC, cast iron, and concrete pipes, and is effective on long runs of drainage. It typically requires access to a main drain point and specialised equipment; plumbers deploy mobile units with pressurised tanks and hoses. High-pressure water jetting is especially valuable in Klang Valley's older residential areas where cast-iron stormwater and sewerage lines accumulate decades of mineral and grease deposits.
Plumbers offering this service can be found in the drain pipe unclogging directory.